One or two long, hair-like structures called __________ extend from the surface of cells and help move the cell.

Fill in the blank(s) with the appropriate word(s).


Answer: Flagella

Biology & Microbiology

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Although Deinococcus-Thermus phyla stain Gram-positive, which reason(s) exclude them from this Gram type?

A. They lack teichoic acids. B. Their cell envelope includes an S-layer. C. They have L-ornithine in their peptidoglycan. D. Their plasma membrane has phosphatidylglycerol phospholipids instead of palmitoleic acids.

Biology & Microbiology

Cytotoxic T-cells

A. lack specificity for a target cell. B. secrete interleukin-2 to stimulate B and T-cells. C. stimulate B-cell proliferation. D. secrete granzymes and perforins that damage target cells. E. All of these choices are correct.

Biology & Microbiology

List and explain the five steps involved in DNA replication.

What will be an ideal response?

Biology & Microbiology

Peroxisomes are examples of:

A. microbodies. B. ribosomes. C. chromosomes. D. nucleosomes. E. lysosomes.

Biology & Microbiology